/Engine/Plugins/VirtualProduction/DMX/DMXEngine/Source/DMXEditor/Public/Widgets/SAssetPickerButton.h
Disallows subclasses from the allowed asset class(es). Doesn't affect the Use Selected on Content Browser button.
WidgetArgsType & DisallowedClasses &40; TArray< FTopLevelAssetPath > InArg &41;